0
ACTIVE
Supply voltage (min) (V) |
1.65 |
Supply voltage (max) (V) |
3.6 |
Number of channels |
16 |
IOL (max) (mA) |
24 |
IOH (max) (mA) |
-24 |
Input type |
LVTTL |
Output type |
LVTTL |
Features |
Balanced outputs, Bus-hold, Ultra high speed (tpd <5ns) |
Technology family |
ALVC |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 85 |
SSOP (DL)-56-190.647 mm² 18.42 x 10.35
Widebus, EPIC are trademarks of Texas Instruments.
This 16-bit registered transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74ALVCH16543 can be used as two 8-bit transceivers or one 16-bit transceiver. Separate latch-enable (LEAB or LEBA) and output-enable (OEAB or OEBA) inputs are provided for each register to permit independent control in either direction of data flow.
The A-to-B enable (CEAB) input must be low to enter data from A or to output data from B. If CEAB is low and LEAB is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB puts the A latches in the storage mode. With CEAB and OEAB both low, the 3-state B outputs are active and reflect the data present at the output of the A latches. Data flow from B to A is similar, but requires using CEBA, LEBA, and OEBA.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCH16543 is characterized for operation from 40°C to 85°C.
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